iOS: Deliver all QWindowSystemInterface events synchronously

On iOS we want all delivery of events from the system to be handled
synchronously, as that's what the system expects.

We don't need to add a delivery template argument to each function
in QWindowSystemInterface that we want to delivery synchronously;
that's only needed for functions that a platform normally sends
asynch, but in some cases want to delivery synchronously.

For always delivering events synchronously we just need to change
the default delivery method.

The only events affected by this are the screen changes, and
window state change, which were not synchronous before, but
should be. All other events were already synchronous, though
either explicit delivery, of a flush.

Change-Id: Ib20ca342d1c076be0fbcf018c83735a416769cfe
Reviewed-by: Richard Moe Gustavsen <richard.gustavsen@qt.io>

1 files changed, 1 insertions, 1 deletions

diff --git a/src/plugins/platforms/ios/qiosapplicationstate.mm b/src/plugins/platforms/ios/qiosapplicationstate.mm
index 13e7e1150f..7c8e1f9927 100644
--- a/src/plugins/platforms/ios/qiosapplicationstate.mm
+++ b/src/plugins/platforms/ios/qiosapplicationstate.mm
@@ -75,7 +75,7 @@ static void handleApplicationStateChanged(UIApplicationState uiApplicationState)
 {
     Qt::ApplicationState state = qtApplicationState(uiApplicationState);
     qCDebug(lcQpaApplication) << "moved to" << state;
-    QWindowSystemInterface::handleApplicationStateChanged<QWindowSystemInterface::SynchronousDelivery>(state);
+    QWindowSystemInterface::handleApplicationStateChanged(state);
 }
 
 QT_BEGIN_NAMESPACE